Electricity
What is electricity
Electrons moving in a conductor
What is a magnetic field
A magnetic field is the area around a magnet which attracts some objects
True or false many people in the 1800 thought electricity and magnetism was not related
True
What is light
Light is a form of electromagnetic radiation with a wavelength which can be detected by the human eye
What type of radiation does does the sun give out
UV rays
What are the different types of electricity
Static and current electricity
What is the magnetic force
It is the force that attracts or repels objects
When was Maxwell's 4 laws made
What is a light particle called
A photon
What is the visible light spectrum
The visible light spectrum are all the colors we can see
Explain what are conductors and what are insulators and what are semi conductors and give examples
Insulators are an object that does not allow electricity to pass through it. Some examples are Air, cloth and rubber whereas Conductors are an object that easily allows electricity to pass through it. They are usually metals. A semiconductor is a material that conducts current, but only partly an example is silicon.
True or false if you break a magnet it won't work
False You can think of a magnet as a a bunch of tiny magnets that are jammed together. Each one has a tiny north and south pole. If you cut one in half the cut part will become the north or south poles of the broken pieces.
If you take a wire and coil it tightly around an iron nail and connect the 2 ends to a battery what will happen
The nail will become a magnet
True or false we know for sure that nothing can travel faster than the speed of light
False the universe might be expanding faster than the speed of light
Which radiation has the highest energy in the electromagnetic spectrum
Gamma rays have the highest energy, the shortest wavelengths, and the highest frequencies in the electromagnetic spectrum
What is the best conductor
Silver
What is a magnetic monopole
A magnetic monopole is a particle that is an isolated magnet with only one magnetic pole
What are Maxwell's 4 laws
1. Electric charges produce an electric field.
2. There are no magnetic monopoles.
3. Varying magnetic fields produce an electric field.
4. Moving electricity produces a magnetic field.
What is color subtraction
Color subtraction is basically what happens when someone sees a color. What is happening is that all the colors of white light are getting absorbed by the object you are looking at except for the color of that object, the color of the object is bouncing back at your eyes. (For black all the colors are getting absorbed and for white all of the colors are bouncing back at your eyes)
Which radiation has the smallest energy in the electromagnetic spectrum
Radio waves, have the smallest energy, longest wavelengths, and smallest frequencies in the electromagnetic spectrum
Why does lightning happen
Lightning happens when there are too many electrons in the clouds so they go to the ground in large amounts. The electrons go to the ground because, they are negatively charged and the ground is positively charged and negative charges like to go to positive charges to become neutral.
What is the biggest magnet in the world
The earth's inner core
What one or some examples of electromagnetic radiation select all that apply
a.UV light
b. electricity
c. visible light
d. magnets
e. microwave
Electromagnetic radiation can be any radiation in the electromagnetic spectrum so the answers are UV light, visible light, and microwave
Where does light travel the fastest and and where does light travel the slowest
Light travels the fastest in vacuum and light travels the slowest in diamonds
What is the order of the electromagnetic spectrum
Radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays